Exfoliated Magnesium Diboride (MgB₂) Nanosheets as Solid Fuels

Abstract

Magnesium diboride (MgB 2 ) has been explored as an alternative fuel to boron (B) due to its high energy density and the additive effect of magnesium (Mg) to promote B combustion. However, the primary oxidation of MgB 2 does not occur unless it decomposes at a high temperature (830 °C), which makes ignition difficult and the reaction slow. Recently, two-dimensional (2D) exfoliated MgB 2 nanosheets have attracted increasing attention due to their unique properties and potential applications in various fields. In this study, we investigate the potential of 2D exfoliated MgB 2 nanosheets as solid fuels for overcoming the challenges of MgB 2 combustion. We analyzed their oxidation behavior and energetic performance through material characterization and combustion tests under slow-and fast-heating conditions and compared their performance with those of bulk MgB 2 , B nanoparticles, and a B/Mg nanoparticle mixture. This study highlights the potential of MgB 2 nanosheets as promising solid fuels with superior energetic properties.

In Situ Electrochemical Construction of CuN3@CuCl Hybrids for Controllable Energy Release and Self-Passivation Ability

“…Energetic materials (EMs) are special materials that store chemical energy. − Over the years, EMs have garnered significant interest in the scientific community and civil industry as they are attractive sources of onboard energy for the generation of heat, gas, and power. , In particular, EMs have a significant influence on the microenergetic field. The applications include microthrust, microigniter, microinitiation, gases for actuation (including injection or moving fluid), gases for chemical reactions, heating, and switching. − However, there are currently two principal challenges in the utilization of EMs in the aforementioned microenergetic field.…”